/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe004_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b09bf87 [2020-10-16 13:35:24,166 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-16 13:35:24,169 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-16 13:35:24,207 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-16 13:35:24,207 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-16 13:35:24,215 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-16 13:35:24,218 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-16 13:35:24,222 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-16 13:35:24,224 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-16 13:35:24,228 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-16 13:35:24,228 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-16 13:35:24,229 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-16 13:35:24,229 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-16 13:35:24,232 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-16 13:35:24,234 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-16 13:35:24,236 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-16 13:35:24,237 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-16 13:35:24,238 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-16 13:35:24,239 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-16 13:35:24,247 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-16 13:35:24,249 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-16 13:35:24,250 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-16 13:35:24,250 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-16 13:35:24,251 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-16 13:35:24,263 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-16 13:35:24,266 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-16 13:35:24,266 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-16 13:35:24,267 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-16 13:35:24,268 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-16 13:35:24,270 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-16 13:35:24,271 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-16 13:35:24,271 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-16 13:35:24,272 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-16 13:35:24,276 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-16 13:35:24,276 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-16 13:35:24,277 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-16 13:35:24,277 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-16 13:35:24,277 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-16 13:35:24,278 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-16 13:35:24,280 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-16 13:35:24,281 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-16 13:35:24,281 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2020-10-16 13:35:24,317 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-16 13:35:24,317 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-16 13:35:24,319 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-16 13:35:24,319 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-16 13:35:24,319 INFO L138 SettingsManager]: * Use SBE=true [2020-10-16 13:35:24,319 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-16 13:35:24,319 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-16 13:35:24,320 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-16 13:35:24,320 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-16 13:35:24,320 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-16 13:35:24,321 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-16 13:35:24,321 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-16 13:35:24,321 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-16 13:35:24,322 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-16 13:35:24,322 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-16 13:35:24,322 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-16 13:35:24,322 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-16 13:35:24,322 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-16 13:35:24,322 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-16 13:35:24,323 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-16 13:35:24,323 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-16 13:35:24,323 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 13:35:24,323 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-16 13:35:24,324 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-16 13:35:24,324 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-16 13:35:24,324 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-16 13:35:24,324 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-16 13:35:24,324 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-10-16 13:35:24,325 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-16 13:35:24,325 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-16 13:35:24,326 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-10-16 13:35:24,616 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-16 13:35:24,633 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-16 13:35:24,638 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-16 13:35:24,639 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-16 13:35:24,640 INFO L275 PluginConnector]: CDTParser initialized [2020-10-16 13:35:24,641 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe004_tso.opt.i [2020-10-16 13:35:24,707 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/289df1206/2db8cc737e044fde8998b7fdbed68d48/FLAG1c17616a9 [2020-10-16 13:35:25,257 INFO L306 CDTParser]: Found 1 translation units. [2020-10-16 13:35:25,258 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-wmm/safe004_tso.opt.i [2020-10-16 13:35:25,270 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/289df1206/2db8cc737e044fde8998b7fdbed68d48/FLAG1c17616a9 [2020-10-16 13:35:25,529 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/289df1206/2db8cc737e044fde8998b7fdbed68d48 [2020-10-16 13:35:25,539 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-16 13:35:25,541 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-16 13:35:25,541 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-16 13:35:25,542 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-16 13:35:25,545 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-16 13:35:25,546 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:35:25" (1/1) ... [2020-10-16 13:35:25,549 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@93fe9d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:35:25, skipping insertion in model container [2020-10-16 13:35:25,549 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:35:25" (1/1) ... [2020-10-16 13:35:25,556 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-16 13:35:25,610 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-16 13:35:26,035 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 13:35:26,046 INFO L203 MainTranslator]: Completed pre-run [2020-10-16 13:35:26,092 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 13:35:26,177 INFO L208 MainTranslator]: Completed translation [2020-10-16 13:35:26,179 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:35:26 WrapperNode [2020-10-16 13:35:26,179 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-16 13:35:26,180 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-16 13:35:26,180 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-16 13:35:26,181 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-16 13:35:26,191 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:35:26" (1/1) ... [2020-10-16 13:35:26,209 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:35:26" (1/1) ... [2020-10-16 13:35:26,230 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-16 13:35:26,230 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-16 13:35:26,231 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-16 13:35:26,231 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-16 13:35:26,240 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:35:26" (1/1) ... [2020-10-16 13:35:26,240 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:35:26" (1/1) ... [2020-10-16 13:35:26,243 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:35:26" (1/1) ... [2020-10-16 13:35:26,243 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:35:26" (1/1) ... [2020-10-16 13:35:26,249 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:35:26" (1/1) ... [2020-10-16 13:35:26,251 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:35:26" (1/1) ... [2020-10-16 13:35:26,253 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:35:26" (1/1) ... [2020-10-16 13:35:26,256 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-16 13:35:26,257 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-16 13:35:26,257 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-16 13:35:26,257 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-16 13:35:26,258 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:35:26" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 13:35:26,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-16 13:35:26,319 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-16 13:35:26,319 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-16 13:35:26,319 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-16 13:35:26,320 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-16 13:35:26,320 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-16 13:35:26,320 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-16 13:35:26,320 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-16 13:35:26,320 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-16 13:35:26,320 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-16 13:35:26,321 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-16 13:35:26,321 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-16 13:35:26,321 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-16 13:35:26,322 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-16 13:35:26,640 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-16 13:35:26,641 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-16 13:35:26,642 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:35:26 BoogieIcfgContainer [2020-10-16 13:35:26,643 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-16 13:35:26,644 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-16 13:35:26,644 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-16 13:35:26,647 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-16 13:35:26,648 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 01:35:25" (1/3) ... [2020-10-16 13:35:26,648 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c7bfe9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:35:26, skipping insertion in model container [2020-10-16 13:35:26,649 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:35:26" (2/3) ... [2020-10-16 13:35:26,649 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c7bfe9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:35:26, skipping insertion in model container [2020-10-16 13:35:26,649 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:35:26" (3/3) ... [2020-10-16 13:35:26,651 INFO L111 eAbstractionObserver]: Analyzing ICFG safe004_tso.opt.i [2020-10-16 13:35:26,660 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-16 13:35:26,661 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-16 13:35:26,666 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-16 13:35:26,667 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-16 13:35:26,698 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:35:26,699 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:35:26,699 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:35:26,699 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:35:26,700 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:35:26,700 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:35:26,701 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:35:26,701 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:35:26,701 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:35:26,702 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:35:26,702 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:35:26,702 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:35:26,703 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:35:26,703 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:35:26,703 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:35:26,703 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:35:26,704 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:35:26,704 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:35:26,708 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:35:26,708 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:35:26,709 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:35:26,709 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:35:26,723 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:35:26,724 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:35:26,724 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:35:26,725 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:35:26,736 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:35:26,736 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:35:26,737 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:35:26,737 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 13:35:26,748 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-16 13:35:26,761 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-16 13:35:26,780 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 13:35:26,781 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-16 13:35:26,781 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-16 13:35:26,781 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-10-16 13:35:26,781 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 13:35:26,781 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 13:35:26,782 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 13:35:26,782 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 13:35:26,794 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-16 13:35:26,795 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 69 transitions, 153 flow [2020-10-16 13:35:26,798 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 77 places, 69 transitions, 153 flow [2020-10-16 13:35:26,800 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 77 places, 69 transitions, 153 flow [2020-10-16 13:35:26,844 INFO L129 PetriNetUnfolder]: 2/66 cut-off events. [2020-10-16 13:35:26,844 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 13:35:26,849 INFO L80 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 66 events. 2/66 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 54 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-10-16 13:35:26,852 INFO L117 LiptonReduction]: Number of co-enabled transitions 1260 [2020-10-16 13:35:28,194 INFO L132 LiptonReduction]: Checked pairs total: 2581 [2020-10-16 13:35:28,195 INFO L134 LiptonReduction]: Total number of compositions: 58 [2020-10-16 13:35:28,202 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow [2020-10-16 13:35:28,229 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-10-16 13:35:28,231 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-10-16 13:35:28,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-16 13:35:28,239 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:35:28,240 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:35:28,240 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:35:28,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:35:28,246 INFO L82 PathProgramCache]: Analyzing trace with hash -245765301, now seen corresponding path program 1 times [2020-10-16 13:35:28,268 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:35:28,269 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072432703] [2020-10-16 13:35:28,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:35:28,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:35:28,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:35:28,487 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072432703] [2020-10-16 13:35:28,488 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:35:28,488 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-16 13:35:28,489 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [558556655] [2020-10-16 13:35:28,490 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:35:28,493 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:35:28,507 INFO L258 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-10-16 13:35:28,508 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:35:28,513 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:35:28,513 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 13:35:28,514 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:35:28,531 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 13:35:28,532 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 13:35:28,534 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-10-16 13:35:28,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:35:28,573 INFO L93 Difference]: Finished difference Result 290 states and 834 transitions. [2020-10-16 13:35:28,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 13:35:28,575 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-16 13:35:28,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:35:28,591 INFO L225 Difference]: With dead ends: 290 [2020-10-16 13:35:28,591 INFO L226 Difference]: Without dead ends: 226 [2020-10-16 13:35:28,593 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 13:35:28,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2020-10-16 13:35:28,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 226. [2020-10-16 13:35:28,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2020-10-16 13:35:28,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 626 transitions. [2020-10-16 13:35:28,662 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 626 transitions. Word has length 8 [2020-10-16 13:35:28,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:35:28,664 INFO L481 AbstractCegarLoop]: Abstraction has 226 states and 626 transitions. [2020-10-16 13:35:28,664 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 13:35:28,664 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 626 transitions. [2020-10-16 13:35:28,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-16 13:35:28,665 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:35:28,666 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:35:28,666 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-16 13:35:28,666 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:35:28,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:35:28,667 INFO L82 PathProgramCache]: Analyzing trace with hash 956609449, now seen corresponding path program 1 times [2020-10-16 13:35:28,668 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:35:28,669 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692700323] [2020-10-16 13:35:28,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:35:28,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:35:28,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:35:28,738 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692700323] [2020-10-16 13:35:28,738 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:35:28,739 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-16 13:35:28,739 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1056577976] [2020-10-16 13:35:28,739 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:35:28,740 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:35:28,742 INFO L258 McrAutomatonBuilder]: Finished intersection with 13 states and 15 transitions. [2020-10-16 13:35:28,742 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:35:28,771 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:35:28,773 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 13:35:28,773 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:35:28,774 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 13:35:28,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 13:35:28,774 INFO L87 Difference]: Start difference. First operand 226 states and 626 transitions. Second operand 3 states. [2020-10-16 13:35:28,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:35:28,783 INFO L93 Difference]: Finished difference Result 212 states and 578 transitions. [2020-10-16 13:35:28,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 13:35:28,784 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-10-16 13:35:28,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:35:28,786 INFO L225 Difference]: With dead ends: 212 [2020-10-16 13:35:28,786 INFO L226 Difference]: Without dead ends: 212 [2020-10-16 13:35:28,787 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 13:35:28,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2020-10-16 13:35:28,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 212. [2020-10-16 13:35:28,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2020-10-16 13:35:28,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 578 transitions. [2020-10-16 13:35:28,806 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 578 transitions. Word has length 9 [2020-10-16 13:35:28,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:35:28,807 INFO L481 AbstractCegarLoop]: Abstraction has 212 states and 578 transitions. [2020-10-16 13:35:28,807 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 13:35:28,807 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 578 transitions. [2020-10-16 13:35:28,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-16 13:35:28,808 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:35:28,809 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:35:28,809 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-16 13:35:28,809 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:35:28,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:35:28,810 INFO L82 PathProgramCache]: Analyzing trace with hash -409878926, now seen corresponding path program 1 times [2020-10-16 13:35:28,811 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:35:28,811 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234713377] [2020-10-16 13:35:28,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:35:28,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:35:28,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:35:28,868 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [234713377] [2020-10-16 13:35:28,868 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:35:28,869 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 13:35:28,869 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1038878109] [2020-10-16 13:35:28,869 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:35:28,870 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:35:28,872 INFO L258 McrAutomatonBuilder]: Finished intersection with 17 states and 23 transitions. [2020-10-16 13:35:28,873 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:35:28,914 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:35:28,915 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 13:35:28,915 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:35:28,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 13:35:28,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 13:35:28,916 INFO L87 Difference]: Start difference. First operand 212 states and 578 transitions. Second operand 4 states. [2020-10-16 13:35:28,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:35:28,947 INFO L93 Difference]: Finished difference Result 293 states and 785 transitions. [2020-10-16 13:35:28,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 13:35:28,948 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-10-16 13:35:28,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:35:28,950 INFO L225 Difference]: With dead ends: 293 [2020-10-16 13:35:28,950 INFO L226 Difference]: Without dead ends: 197 [2020-10-16 13:35:28,951 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-16 13:35:28,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2020-10-16 13:35:28,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 197. [2020-10-16 13:35:28,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 197 states. [2020-10-16 13:35:28,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 525 transitions. [2020-10-16 13:35:28,965 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 525 transitions. Word has length 10 [2020-10-16 13:35:28,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:35:28,966 INFO L481 AbstractCegarLoop]: Abstraction has 197 states and 525 transitions. [2020-10-16 13:35:28,966 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 13:35:28,966 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 525 transitions. [2020-10-16 13:35:28,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-16 13:35:28,968 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:35:28,968 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:35:28,968 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-16 13:35:28,968 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:35:28,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:35:28,969 INFO L82 PathProgramCache]: Analyzing trace with hash 1131193343, now seen corresponding path program 1 times [2020-10-16 13:35:28,970 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:35:28,970 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190608841] [2020-10-16 13:35:28,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:35:28,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:35:29,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:35:29,029 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190608841] [2020-10-16 13:35:29,030 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:35:29,030 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 13:35:29,032 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [893917380] [2020-10-16 13:35:29,032 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:35:29,033 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:35:29,038 INFO L258 McrAutomatonBuilder]: Finished intersection with 25 states and 38 transitions. [2020-10-16 13:35:29,038 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:35:29,048 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:35:29,048 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 13:35:29,049 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:35:29,049 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 13:35:29,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 13:35:29,049 INFO L87 Difference]: Start difference. First operand 197 states and 525 transitions. Second operand 3 states. [2020-10-16 13:35:29,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:35:29,059 INFO L93 Difference]: Finished difference Result 269 states and 681 transitions. [2020-10-16 13:35:29,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 13:35:29,060 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-10-16 13:35:29,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:35:29,061 INFO L225 Difference]: With dead ends: 269 [2020-10-16 13:35:29,061 INFO L226 Difference]: Without dead ends: 209 [2020-10-16 13:35:29,062 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 13:35:29,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2020-10-16 13:35:29,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 191. [2020-10-16 13:35:29,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 191 states. [2020-10-16 13:35:29,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 476 transitions. [2020-10-16 13:35:29,074 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 476 transitions. Word has length 11 [2020-10-16 13:35:29,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:35:29,074 INFO L481 AbstractCegarLoop]: Abstraction has 191 states and 476 transitions. [2020-10-16 13:35:29,074 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 13:35:29,075 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 476 transitions. [2020-10-16 13:35:29,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-16 13:35:29,076 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:35:29,076 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:35:29,076 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-16 13:35:29,076 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:35:29,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:35:29,077 INFO L82 PathProgramCache]: Analyzing trace with hash 1251156259, now seen corresponding path program 1 times [2020-10-16 13:35:29,078 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:35:29,078 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254887052] [2020-10-16 13:35:29,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:35:29,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:35:29,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:35:29,118 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254887052] [2020-10-16 13:35:29,118 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:35:29,118 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 13:35:29,118 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [269793872] [2020-10-16 13:35:29,119 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:35:29,120 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:35:29,122 INFO L258 McrAutomatonBuilder]: Finished intersection with 27 states and 45 transitions. [2020-10-16 13:35:29,123 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:35:29,185 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:35:29,186 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 13:35:29,186 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:35:29,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 13:35:29,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 13:35:29,187 INFO L87 Difference]: Start difference. First operand 191 states and 476 transitions. Second operand 4 states. [2020-10-16 13:35:29,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:35:29,242 INFO L93 Difference]: Finished difference Result 250 states and 578 transitions. [2020-10-16 13:35:29,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 13:35:29,243 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-16 13:35:29,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:35:29,244 INFO L225 Difference]: With dead ends: 250 [2020-10-16 13:35:29,244 INFO L226 Difference]: Without dead ends: 158 [2020-10-16 13:35:29,245 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-16 13:35:29,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2020-10-16 13:35:29,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 146. [2020-10-16 13:35:29,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2020-10-16 13:35:29,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 330 transitions. [2020-10-16 13:35:29,254 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 330 transitions. Word has length 11 [2020-10-16 13:35:29,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:35:29,254 INFO L481 AbstractCegarLoop]: Abstraction has 146 states and 330 transitions. [2020-10-16 13:35:29,254 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 13:35:29,254 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 330 transitions. [2020-10-16 13:35:29,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-16 13:35:29,255 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:35:29,256 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:35:29,256 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-16 13:35:29,256 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:35:29,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:35:29,256 INFO L82 PathProgramCache]: Analyzing trace with hash -1304596236, now seen corresponding path program 1 times [2020-10-16 13:35:29,257 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:35:29,258 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329007918] [2020-10-16 13:35:29,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:35:29,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:35:29,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:35:29,297 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329007918] [2020-10-16 13:35:29,298 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:35:29,298 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-16 13:35:29,298 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [338914436] [2020-10-16 13:35:29,298 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:35:29,300 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:35:29,302 INFO L258 McrAutomatonBuilder]: Finished intersection with 19 states and 25 transitions. [2020-10-16 13:35:29,302 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:35:29,341 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:35:29,341 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 13:35:29,341 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:35:29,341 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 13:35:29,342 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 13:35:29,342 INFO L87 Difference]: Start difference. First operand 146 states and 330 transitions. Second operand 3 states. [2020-10-16 13:35:29,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:35:29,352 INFO L93 Difference]: Finished difference Result 138 states and 304 transitions. [2020-10-16 13:35:29,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 13:35:29,353 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-10-16 13:35:29,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:35:29,355 INFO L225 Difference]: With dead ends: 138 [2020-10-16 13:35:29,355 INFO L226 Difference]: Without dead ends: 138 [2020-10-16 13:35:29,356 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 13:35:29,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2020-10-16 13:35:29,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2020-10-16 13:35:29,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2020-10-16 13:35:29,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 304 transitions. [2020-10-16 13:35:29,369 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 304 transitions. Word has length 11 [2020-10-16 13:35:29,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:35:29,370 INFO L481 AbstractCegarLoop]: Abstraction has 138 states and 304 transitions. [2020-10-16 13:35:29,370 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 13:35:29,370 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 304 transitions. [2020-10-16 13:35:29,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-16 13:35:29,371 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:35:29,371 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:35:29,372 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-16 13:35:29,372 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:35:29,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:35:29,372 INFO L82 PathProgramCache]: Analyzing trace with hash -1787779324, now seen corresponding path program 1 times [2020-10-16 13:35:29,373 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:35:29,374 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515562675] [2020-10-16 13:35:29,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:35:29,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:35:29,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:35:29,428 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515562675] [2020-10-16 13:35:29,429 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:35:29,429 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 13:35:29,429 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1026948405] [2020-10-16 13:35:29,429 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:35:29,433 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:35:29,435 INFO L258 McrAutomatonBuilder]: Finished intersection with 21 states and 28 transitions. [2020-10-16 13:35:29,436 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:35:29,449 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:35:29,449 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 13:35:29,449 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:35:29,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 13:35:29,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 13:35:29,450 INFO L87 Difference]: Start difference. First operand 138 states and 304 transitions. Second operand 3 states. [2020-10-16 13:35:29,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:35:29,474 INFO L93 Difference]: Finished difference Result 146 states and 304 transitions. [2020-10-16 13:35:29,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 13:35:29,474 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-10-16 13:35:29,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:35:29,475 INFO L225 Difference]: With dead ends: 146 [2020-10-16 13:35:29,475 INFO L226 Difference]: Without dead ends: 56 [2020-10-16 13:35:29,476 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 13:35:29,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2020-10-16 13:35:29,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2020-10-16 13:35:29,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-10-16 13:35:29,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 108 transitions. [2020-10-16 13:35:29,479 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 108 transitions. Word has length 12 [2020-10-16 13:35:29,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:35:29,480 INFO L481 AbstractCegarLoop]: Abstraction has 56 states and 108 transitions. [2020-10-16 13:35:29,480 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 13:35:29,480 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 108 transitions. [2020-10-16 13:35:29,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-16 13:35:29,481 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:35:29,481 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:35:29,481 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-16 13:35:29,481 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:35:29,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:35:29,482 INFO L82 PathProgramCache]: Analyzing trace with hash 413447767, now seen corresponding path program 1 times [2020-10-16 13:35:29,483 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:35:29,483 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489731080] [2020-10-16 13:35:29,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:35:29,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:35:29,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:35:29,509 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489731080] [2020-10-16 13:35:29,509 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:35:29,510 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 13:35:29,510 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1402994407] [2020-10-16 13:35:29,510 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:35:29,511 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:35:29,515 INFO L258 McrAutomatonBuilder]: Finished intersection with 33 states and 53 transitions. [2020-10-16 13:35:29,515 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:35:29,524 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 13:35:29,525 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 13:35:29,525 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:35:29,525 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 13:35:29,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 13:35:29,526 INFO L87 Difference]: Start difference. First operand 56 states and 108 transitions. Second operand 4 states. [2020-10-16 13:35:29,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:35:29,542 INFO L93 Difference]: Finished difference Result 64 states and 120 transitions. [2020-10-16 13:35:29,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 13:35:29,543 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-10-16 13:35:29,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:35:29,543 INFO L225 Difference]: With dead ends: 64 [2020-10-16 13:35:29,543 INFO L226 Difference]: Without dead ends: 52 [2020-10-16 13:35:29,544 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-16 13:35:29,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-10-16 13:35:29,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2020-10-16 13:35:29,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-10-16 13:35:29,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 96 transitions. [2020-10-16 13:35:29,547 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 96 transitions. Word has length 13 [2020-10-16 13:35:29,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:35:29,547 INFO L481 AbstractCegarLoop]: Abstraction has 52 states and 96 transitions. [2020-10-16 13:35:29,547 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 13:35:29,547 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 96 transitions. [2020-10-16 13:35:29,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-16 13:35:29,548 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:35:29,548 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:35:29,548 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-16 13:35:29,548 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:35:29,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:35:29,549 INFO L82 PathProgramCache]: Analyzing trace with hash 413415217, now seen corresponding path program 2 times [2020-10-16 13:35:29,551 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:35:29,551 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912675623] [2020-10-16 13:35:29,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:35:29,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:35:29,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:35:29,649 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912675623] [2020-10-16 13:35:29,650 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:35:29,650 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 13:35:29,651 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1451649832] [2020-10-16 13:35:29,651 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:35:29,654 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:35:29,658 INFO L258 McrAutomatonBuilder]: Finished intersection with 33 states and 53 transitions. [2020-10-16 13:35:29,658 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:35:29,691 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-16 13:35:29,746 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-16 13:35:29,761 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-16 13:35:29,777 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-16 13:35:29,788 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-16 13:35:29,792 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [4813#(not (= 3 ~__unbuffered_cnt~0))] [2020-10-16 13:35:29,793 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 13:35:29,793 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:35:29,793 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 13:35:29,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-16 13:35:29,794 INFO L87 Difference]: Start difference. First operand 52 states and 96 transitions. Second operand 5 states. [2020-10-16 13:35:29,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:35:29,846 INFO L93 Difference]: Finished difference Result 45 states and 76 transitions. [2020-10-16 13:35:29,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-16 13:35:29,847 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-16 13:35:29,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:35:29,847 INFO L225 Difference]: With dead ends: 45 [2020-10-16 13:35:29,848 INFO L226 Difference]: Without dead ends: 31 [2020-10-16 13:35:29,848 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-16 13:35:29,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-10-16 13:35:29,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2020-10-16 13:35:29,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-10-16 13:35:29,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 44 transitions. [2020-10-16 13:35:29,850 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 44 transitions. Word has length 13 [2020-10-16 13:35:29,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:35:29,851 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 44 transitions. [2020-10-16 13:35:29,851 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 13:35:29,851 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 44 transitions. [2020-10-16 13:35:29,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-16 13:35:29,851 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 13:35:29,852 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 13:35:29,852 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-16 13:35:29,852 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 13:35:29,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 13:35:29,852 INFO L82 PathProgramCache]: Analyzing trace with hash 1126720068, now seen corresponding path program 1 times [2020-10-16 13:35:29,853 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 13:35:29,854 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477812406] [2020-10-16 13:35:29,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 13:35:29,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 13:35:29,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 13:35:29,930 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477812406] [2020-10-16 13:35:29,930 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 13:35:29,931 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-16 13:35:29,931 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1435865390] [2020-10-16 13:35:29,931 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 13:35:29,933 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 13:35:29,938 INFO L258 McrAutomatonBuilder]: Finished intersection with 35 states and 54 transitions. [2020-10-16 13:35:29,938 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 13:35:29,971 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-16 13:35:30,012 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [4931#(<= ~__unbuffered_cnt~0 0)] [2020-10-16 13:35:30,013 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-16 13:35:30,013 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 13:35:30,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-16 13:35:30,013 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-16 13:35:30,014 INFO L87 Difference]: Start difference. First operand 31 states and 44 transitions. Second operand 7 states. [2020-10-16 13:35:30,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 13:35:30,034 INFO L93 Difference]: Finished difference Result 28 states and 41 transitions. [2020-10-16 13:35:30,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-16 13:35:30,034 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2020-10-16 13:35:30,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 13:35:30,035 INFO L225 Difference]: With dead ends: 28 [2020-10-16 13:35:30,035 INFO L226 Difference]: Without dead ends: 0 [2020-10-16 13:35:30,035 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-10-16 13:35:30,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-16 13:35:30,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-16 13:35:30,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-16 13:35:30,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-16 13:35:30,036 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2020-10-16 13:35:30,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 13:35:30,036 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-16 13:35:30,037 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-16 13:35:30,037 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-16 13:35:30,037 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-16 13:35:30,037 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-16 13:35:30,041 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 01:35:30 BasicIcfg [2020-10-16 13:35:30,041 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-16 13:35:30,044 INFO L168 Benchmark]: Toolchain (without parser) took 4502.79 ms. Allocated memory was 147.3 MB in the beginning and 244.8 MB in the end (delta: 97.5 MB). Free memory was 101.6 MB in the beginning and 114.0 MB in the end (delta: -12.4 MB). Peak memory consumption was 85.1 MB. Max. memory is 7.1 GB. [2020-10-16 13:35:30,044 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 147.3 MB. Free memory was 121.9 MB in the beginning and 121.7 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-16 13:35:30,045 INFO L168 Benchmark]: CACSL2BoogieTranslator took 637.80 ms. Allocated memory was 147.3 MB in the beginning and 203.9 MB in the end (delta: 56.6 MB). Free memory was 101.4 MB in the beginning and 160.4 MB in the end (delta: -59.0 MB). Peak memory consumption was 21.3 MB. Max. memory is 7.1 GB. [2020-10-16 13:35:30,046 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.99 ms. Allocated memory is still 203.9 MB. Free memory was 160.4 MB in the beginning and 158.4 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2020-10-16 13:35:30,047 INFO L168 Benchmark]: Boogie Preprocessor took 26.06 ms. Allocated memory is still 203.9 MB. Free memory was 158.4 MB in the beginning and 157.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-10-16 13:35:30,047 INFO L168 Benchmark]: RCFGBuilder took 385.90 ms. Allocated memory is still 203.9 MB. Free memory was 156.5 MB in the beginning and 135.0 MB in the end (delta: 21.6 MB). Peak memory consumption was 21.6 MB. Max. memory is 7.1 GB. [2020-10-16 13:35:30,048 INFO L168 Benchmark]: TraceAbstraction took 3397.16 ms. Allocated memory was 203.9 MB in the beginning and 244.8 MB in the end (delta: 40.9 MB). Free memory was 134.3 MB in the beginning and 114.0 MB in the end (delta: 20.4 MB). Peak memory consumption was 61.2 MB. Max. memory is 7.1 GB. [2020-10-16 13:35:30,052 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 147.3 MB. Free memory was 121.9 MB in the beginning and 121.7 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 637.80 ms. Allocated memory was 147.3 MB in the beginning and 203.9 MB in the end (delta: 56.6 MB). Free memory was 101.4 MB in the beginning and 160.4 MB in the end (delta: -59.0 MB). Peak memory consumption was 21.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 49.99 ms. Allocated memory is still 203.9 MB. Free memory was 160.4 MB in the beginning and 158.4 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 26.06 ms. Allocated memory is still 203.9 MB. Free memory was 158.4 MB in the beginning and 157.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 385.90 ms. Allocated memory is still 203.9 MB. Free memory was 156.5 MB in the beginning and 135.0 MB in the end (delta: 21.6 MB). Peak memory consumption was 21.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3397.16 ms. Allocated memory was 203.9 MB in the beginning and 244.8 MB in the end (delta: 40.9 MB). Free memory was 134.3 MB in the beginning and 114.0 MB in the end (delta: 20.4 MB). Peak memory consumption was 61.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 664 VarBasedMoverChecksPositive, 23 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 34 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.3s, 77 PlacesBefore, 31 PlacesAfterwards, 69 TransitionsBefore, 22 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 6 FixpointIterations, 13 TrivialSequentialCompositions, 36 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 58 TotalNumberOfCompositions, 2581 MoverChecksTotal - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 68 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.2s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.4s, HoareTripleCheckerStatistics: 197 SDtfs, 107 SDslu, 180 SDs, 0 SdLazy, 85 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 110 GetRequests, 82 SyntacticMatches, 3 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 30 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 113 NumberOfCodeBlocks, 113 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 103 ConstructedInterpolants, 0 QuantifiedInterpolants, 3095 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...